131916077 has 2 divisors, whose sum is σ = 131916078. Its totient is φ = 131916076.

The previous prime is 131916053. The next prime is 131916089. The reversal of 131916077 is 770619131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123787876 + 8128201 = 11126^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 131916077 - 2¹⁴ = 131899693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131916007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65958038 + 65958039.

It is an arithmetic number, because the mean of its divisors is an integer number (65958039).

Almost surely, 2^131916077 is an apocalyptic number.

It is an amenable number.

131916077 is a deficient number, since it is larger than the sum of its proper divisors (1).

131916077 is an equidigital number, since it uses as much as digits as its factorization.

131916077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 131916077 is about 11485.4724325994. The cubic root of 131916077 is about 509.0564085376.

The spelling of 131916077 in words is "one hundred thirty-one million, nine hundred sixteen thousand, seventy-seven".